C25
PROJECT TITLE:
Durum variety evaluation in off-station and re-crop trials near Moccasin,
Denton, Fort Benton, and Winifred.
PROJECT LEADER:
D. M. Wichman, Agronomist, Moccasin, MT
PROJECT PERSONNEL:
L. E. Talbert, Spring Wheat Breeder, Bozeman, MT
S. P. Lanning, Spring Wheat Research Assoc., Bozeman, MT
G. L. Sharp, Research Associate, Moccasin, MT
J. Vavrovsky, Research Specialist, Moccasin, MT
Dave Philips, Fergus Cty. Ext. Agent, Lewistown, MT
Judee Wargo, Chouteau Cty. Ext. Agent, Fort Benton, MT
OBJECTIVES:
To evaluate the performance of spring durum varieties in environments and cropping methods
representative of the southern triangle and central Montana.
RESULTS:
Yield – Durum yields were below average at all locations except the Denton site where yields were equal
to the 4-year average for that location (Table 20). McNeal spring wheat was used as a check at all sites
and out-yielded all durum varieties tested. Utopia, Mountrail, Maier, and Plenty produced greater yields
than McNeal for some location sites, but their average across the four locations as well as their long-term
averages for any one location were below that of McNeal. Multi-year summaries for each location are
reported in Tables 21, 22, 23, and 24.
Test Weight – Test weights were below average at all sites this year with the average over all sites and all
cultivars being 57.5 lbs/bu (Table 25). Test weights at the Denton and Winifred sites were 58.3 and 58.7
lbs/bu, respectively. Test weights were lowest at the Fort Benton site where moisture was most limited.
Lebsock had the highest test weight of all cultivars when averaged across the four locations. At Moccasin
the experimental line, GM 90002, had a test weight of 59.6 lbs/bu. Vic, Ben, and Medora also had some
of the higher test weights reported at this site.
Protein – High grain protein values accompanied low test weights this year (Table 26). Protein
percentages were lowest at the Denton and Moccasin sites with 16.5% being the average. Proteins at the
Moccasin site were highest averaging 17.5%. Munich, Maier, Sceptre, and Plenty averaged the highest
grain proteins across the four locations. Medora had a grain protein of 18.8% at the Moccasin site.
Plant Height – Plant heights ranged from 21 to 35 inches with a mean height of 28 inches averaged across
all locations (Table 27). Plenty consistently topped the height list in all locations in addition to Kyle and
Ben. Monroe was also one of the taller varieties at the Moccasin site. Plaza was the shortest cultivar
tested with an average height of 24 inches.
ARDurum.doc
C26
SUMMARY:
The Uniform Statewide Durum trial planted at Moccasin consisted of 20 entries with McNeal planted as a
hard red spring wheat check. The off-station trials planted at Denton, Fort Benton, and Winifred
consisted of 10 entries plus McNeal as a check. Low rainfall at the Fort Benton site was very apparent in
all parameters measured in the durum trials. No cultivar yielded as well as McNeal spring wheat when
averaged across the four locations, however, several entries planted at Moccasin in the Statewide nursery
yielded as well or higher than McNeal. Utopia yielded 35 bu/a compared to McNeal with 31 bu/a.
Mountrail, Maier, Plenty, and Kyle out-yielded McNeal at the Winifred site. Inadequate moisture levels
and timing of rainfall contributed to low test weights at all sites and higher than average grain protein. A
test weight of 60 lbs/bu or greater is desirable in a durum variety. While several cultivars came close to
this standard, Lebsock tested the highest with a four-location average of 59.2 lbs/bu. Grain proteins for
all cultivars were well above the 13.5% minimum standard acceptable to buyers. Equations predicting
durum wheat yields based on past variety performance are presented in Table 28.
FUTURE PLANS:
Spring durum variety evaluations will continue at Moccasin, Denton, Fort Benton, and Winifred. The
Uniform Statewide trial with 20 entries will be planted at Moccasin. The off-station trials at Denton, Fort
Benton, and Winifred will consist of six entries with Kyle being the check.
ARDurum.doc
C27
Table 20.
2000 Durum Multi-Location Yield Performance.
Central Agricultural Research Center, Moccasin, Montana.
CARC
Denton
FTBenton
Winifred
Variety
No-Till RC
Till -RC
No-Till RC Till-Fallow
Exp.# :
9870
9871
9872
9873
McNeal
31
33
31
18
Mountrail
28
26
15
36
Maier
30
14
35
23
Plenty
27
25
14
34
Lebsock
30
26
14
30
Munich
31
26
14
27
Belzer
29
24
13
33
Plaza
30
24
12
31
Kyle
29
34
23
11
Ben
27
24
14
29
Sceptre
28
24
13
27
GM 90002
32
GM 90003
27
Laker
28
Medora
24
Monroe
27
Renville
24
Utopia
35
Vic
31
Ward
27
Mean
28.8
25.0
13.9
31.7
LSD (0.05)
3.82
2.13
2.1
6.55
High and low entries for each location are in bold and entries are listed by mean yield.
Planting Date:
4/12/00
4/28/00
4/28/00
4/17/00
Harvest Date:
8/8/00
8/10/00
8/8/00
Previous Crop:
Lentils
Fallow
Fertilizer (lbs N/a):
90
90
90
90
Precipitation (inches):
7.33
8.31
3.9
9.49
Producer/Cooperator:
Barber
Birkeland
Udelhoven
Average
28
26
26
25
25
25
25
24
24
24
23
24.8
RF98ML00.xls
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Table 21.
Moccasin Re-Crop Durum Multi-Year Yield Summary.
Selected
Varieties
Central Agricultural Research Center, Moccasin, MT.
1996
1997
1998
1999
2000
Average
--------------------------------- bu/a -------------------------------
McNeal1/
Monroe
Laker
Medora
Ben
Renville
Ward
Kyle
Vic
Plenty
Munich
Sceptre
Nursery Mean
1/
24
23
23
23
23
22
22
21
21
20
20
65
56
50
51
53
59
50
56
58
56
57
21.8
55
32
33
34
29
33
29
27
31
35
32
33
33
31.4
41
31
34
31
32
34
32
32
31
34
34
33
34
31
27
28
24
27
24
27
29
31
27
31
28
28.8
38.6
34.0
33.8
31.6
33.6
33.6
31.6
33.8
35.2
33.8
35.0
31.3
McNeal is used as a hard red spring wheat check.
Table 22.
Denton Re-Crop Durum Multi-Year Yield.
Selected
Varieties
Central Agricultural Research Center, Moccasin, MT.
1997
1998
1999
2000
Average
---------------------------- bu/a ---------------------------
McNeal1/
Ben
Kyle
Plenty
Munich
Sceptre
Nursery Mean
1/
43
30
28
24
24
26.8
34
28
33
26
29
29
28.3
21
12
17
10
12
15
14.5
31
24
23
25
26
24
25.0
32.2
23.4
25.3
21.2
22.8
22.6
McNeal is used as a hard red spring wheat check.
RF98MY00.xls
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Table 23.
Fort Benton Re-Crop Durum Multi-Year Yield Summary.
Selected
Varieties
Central Agricultural Research Center, Moccasin, MT.
1998
1999
2000
Average
--------------------- bu/a ---------------------
McNeal1/
Ben
Kyle
Plenty
Munich
Sceptre
Nursery Mean
1/
19
17
16
17
18
17
17.6
33
25
25
32
27
29
26.8
18
14
11
14
14
13
13.9
23.5
18.7
17.1
21.1
19.5
19.7
McNeal is used as a hard red spring wheat check.
Table 24.
Winifred Re-Crop Durum Multi-Year Yield Summary.
Selected
Varieties
Central Agricultural Research Center, Moccasin, MT.
1998
1999
2000
Average
--------------------- bu/a ---------------------
McNeal1/
Ben
Kyle
Plenty
Munich
Sceptre
Nursery Mean
1/
47
41
39
36
41
39
38.7
44
33
33
31
35
33
34.3
33
29
34
34
27
27
31.7
41.5
34.0
35.2
33.8
34.4
33.0
McNeal is used as a hard red spring wheat check.
RF98MY00.xls
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Table 25.
2000 Durum Multi-Location Grain Test Weight.
Central Agricultural Research Center, Moccasin, Montana
CARC
Denton
FTBenton
Winifred
Average
Variety
No-Till RC
Till -RC
No-Till RC
Till-Fallow
lbs/bu
Exp.# :
9870
9871
9872
9873
Lebsock
57.7
59.2
60.2
58.6
60.3
Ben
58.5
59.5
57.3
59.9
58.8
Maier
57.5
59.1
56.7
59.3
58.2
Kyle
57.8
58.3
55.7
58.9
57.7
Plenty
57.2
58.7
55.3
59.0
57.6
Munich
55.6
58.2
57.5
58.3
57.4
Plaza
56.5
58.0
55.7
58.3
57.1
Mountrail
56.4
57.9
55.0
58.7
57.0
Belzer
56.6
58.3
56.6
53.9
57.5
Sceptre
55.8
57.4
55.2
57.9
56.6
McNeal
54.6
58.1
55.5
53.3
56.1
GM 90002
59.6
GM 90003
55.5
Laker
56.6
Medora
58.4
Monroe
56.8
Renville
56.5
Utopia
55.4
Vic
59.2
Ward
57.3
Mean
56.91
58.34
55.94
58.75
57.5
LSD (0.05)
0.71
0.94
0.96
High and low entries for each location are in bold and entries are listed by mean test weight.
RF98ML00.xls
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Table 26.
2000Durum Multi-Location Grain Protein.
Central Agricultural Research Center, Moccasin, Montana.
CARC
Denton
FTBenton
Winifred
Average
Variety
No-Till RC
Till -RC
No-Till RC
Till-Fallow
Exp.#
9870
9871
9872
9873
Maier
18.3
16.9
17.3
18.2
20.3
Munich
16.6
19.2
18.2
19.1
17.8
Sceptre
18.6
16.3
20.1
17.3
18.1
Plenty
17.9
17.1
20.1
16.9
18.0
Ben
17.9
16.6
19.9
17.2
17.9
Lebsock
17.5
16.6
19.1
16.9
17.5
Plaza
18.2
16.4
19.2
16.2
17.5
Kyle
16.2
20.1
16.3
17.4
17.2
Mountrail
17.1
16.2
19.8
16.2
17.3
McNeal
17.7
16.3
18.4
16.6
17.3
Belzer
16.6
16.0
19.0
16.0
16.9
GM 90002
16.6
GM 90003
16.2
Laker
16.0
Medora
18.8
Monroe
17.9
Renville
17.8
Utopia
16.3
Vic
16.7
Ward
17.9
Mean
17.5
16.56
19.55
16.79
17.7
High and low entries for each location are in bold and entries are listed by mean protein.
RF98ML00.xls
C32
Table 27.
2000 Durum Multi-Location Plant Height.
Central Agricultural Research Center, Moccasin, Montana.
CARC
Denton
FTBenton
Winifred
Variety
No-Till RC
Till -RC
No-Till RC
Till-Fallow
Exp.# :
9870
9871
9872
9873
Plenty
32
35
30
33
Kyle
34
27
30
34
Ben
32
32
24
30
Belzer
32
30
23
32
Mountrail
29
30
23
29
Sceptre
29
24
30
27
Maier
28
29
24
28
Lebsock
30
29
22
28
McNeal
28
28
23
28
Munich
28
22
25
27
Plaza
24
27
21
24
GM 90002
26
GM 90003
24
Laker
25
Medora
33
Monroe
34
Renville
32
Utopia
25
Vic
33
Ward
33
Mean
29.7
29.8
23.9
28.8
LSD (0.05)
2.11
High and low entries for each location are in bold and entries are listed by mean height.
Average
lbs/a
32.6
31.3
29.4
29.2
27.8
27.6
27.3
27.3
26.8
25.6
24.0
28.0
RF98ML00.xls
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Table 28.
Variety
Belzer
Predictive yields of selected durum varieties grown in Central Montana based on previous
five years1/ of variety performance. Central Agricultural Research Center, 2000.
Yield Level (X) – bu/a
30
45
60
Projected Yields (Y) – bu/a
LY2/
Predictive Equation
R2
30.4
45.7
61.0
12
Y = 1.023X – 0.31
0.989
Ben
29.3
44.3
59.2
15
Y = 0.994X – 0.49
0.986
Crosby
27.6
42.4
57.1
113/
Y= 0.985X – 1.96
0.966
Kyle
30.0
45.6
61.2
15
Y = 1.040X – 1.23
0.980
Laker
30.1
43.3
56.5
12
Y = 0.879X + 3.74
0.940
Lebsock
29.9
44.3
58.6
43/
Y = 0.957X + 1.22
0.986
Lloyd
30.3
45.1
59.8
11
Y = 0.984X – 0.80
0.982
Maier
31.1
48.0
64.9
83/
Y = 1.128X – 2.74
0.988
McNeal4/
36.2
53.0
69.8
14
Y = 1.120X + 2.65
0.947
Medora
28.4
42.3
56.1
12
Y = 0.922X + 0.76
0.980
Monroe
29.6
45.7
61.8
12
Y = 1.072X – 2.54
0.970
Mountrail
31.0
46.2
61.5
83/
Y = 1.015X + 0.54
0.980
Munich
30.0
46.1
62.2
15
Y = 1.073X – 2.17
0.987
Plaza
30.0
46.7
63.4
43/
Y = 1.113X – 3.41
0.994
Plenty
29.4
45.2
61.0
15
Y = 1.053X – 2.18
0.975
Renville
29.1
45.3
61.5
12
Y = 1.079X – 3.23
0.983
Sceptre
29.6
44.2
58.8
12
Y = 0.974X + 0.34
0.976
Utopia
35.5
49.4
63.4
43/
Y = 0.931X + 7.52
0.995
Vic
30.2
46.4
62.5
12
Y = 1.076X – 2.04
0.977
Ward
27.5
40.0
52.6
113/
Y = 0.836X + 2.37
0.989
1/ Data used to calculate predictive equations is compiled from fallow and no-till, irrigated and dryland
environments in Moccasin, Denton, Fort Benton, and Winifred from 1996 – 2000.
2/ LY = Number of Location/Years used to create the predictive equation.
3/ Varieties with fewer than 12 location/years may not be accurate, use equation with caution.
4/ McNeal is used as a hard red spring wheat check.
Data file C:\Regress\Regression.xls
DurReg00.doc